Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 2: Q23E (page 498)

A horizontal wire is stretched with a tension of 94.0 N, and the speed of transverse waves for the wire is 406 m/s. What must the amplitude of a traveling wave of frequency 69.0 Hz be for the average power carried by the wave to be 0.365 W?

Short Answer

Expert verified

The amplitude of a traveling wave of frequency 69.0 Hz be for the average power carried by the wave to be 0.365 W should be 0.0041m.

Step by step solution

01

Determination of the formula of Mechanical Waves

The average power carried by the wave is:

P=12μA2ω2v

Also,

localid="1664344211351" v=Tμμ=Tv2w=2πf

Substitute the values ofμ and w in formula for power we get

P=TA24π2f22v

02

Application of the formula of Mechanical Waves

A=Pv2π2f2TA=0.365×40619.72×4761×94A=0.0401m

Therefore, the amplitude of a traveling wave of frequency 69.0 Hz be for the average power carried by the wave to be 0.365 W should be 0.0041m.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The motors that drive airplane propellers are, in some cases, tuned by using beats. The whirring motor produces a sound wave having the same frequency as the propeller. (a) If one single-bladed propeller is turning at 575rpm and you hear 2Hz beats when you run the second propeller, what are the two possible frequencies (in rpm) of the second propeller? (b) Suppose you increase the speed of the second propeller slightly and find that the beat frequency changes to 2.1Hz. In part (a), which of the two answers was the correct one for the frequency of the second single-bladed propeller? How do you know?

If you are riding in a supersonic aircraft, what do you hear? Explain. In particular, do you hear a continuous sonic boom? Why or why not?

Would you expect the pitch (or frequency) of an organ pipe to increase or decrease with increasing temperature? Explain.

Two train whistles, A and B, each have a frequency of 393Hz. A is stationary and B is moving toward the right (away from A) at a speed of 35m/s. A listener is between the two whistles and is moving toward the right with a speed of 15m/s. No wind is blowing. (a) What is the frequency from A as heard by the listener? (b) What is the frequency from B as heard by the listener? (c) What is the beat frequency detected by the listener?

The intensity due to a number of independent sound sources is the sum of the individual intensities. (a) When four quadruplets cry simultaneously, how many decibels greater is the sound intensity level than when a single one cries? (b) To increase the sound intensity level again by the same number of decibels as in part (a), how many more crying babies are required?
See all solutions

Recommended explanations on Physics Textbooks

Linear Momentum

Read Explanation

Space Physics

Read Explanation

Electric Charge Field and Potential

Read Explanation

Astrophysics

Read Explanation

Turning Points in Physics

Read Explanation

Fields in Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free